On the morning of November 13, 2020, a batch of mine air damper and coal feeder parts were loaded and sent to Shenhua Ning Media Group in Shandong Dongda Electromechanical Production And Intelligent Manufacturing Park. It is reported that the delivery of coal feeder accessories include: coal feeder roller, coal feeder belt, coal feeder reducer, etc. Coal feeder and mine damper, as the main and popular products of our company, occupy an important share in the market and have obtained the certification from relevant departments of the state and meet the national standards and industry standards.
As a new product independently researched and manufactured by our company, the non-pressure damper can replace the damper currently used in the market. It is mainly used in every contact lane between the intake and return air lanes in the underground coal mine, ensuring the breathing safety of underground personnel. Our company produces two kinds of non-pressure damper, transparent type and ordinary type, which can also be customized according to customers' requirements. The company's non-pressure damper has the following characteristics:
1. The opening force is small and has nothing to do with the size and direction of the wind pressure in the tunnel; 2. Two-way air isolation; no reverse damper is required;3. The damper can be closed automatically after the person or vehicle has passed; 4. Two-way sealing, small air leakage; 5. Stable closing, safe and reliable; 6. Anticorrosion, moisture-proof, fire-proof, high strength and low deformation; 7. Latching can be realized between two doors; 8. The system is simple and easy to maintain.
The coal feeder roller, the coal feeder belt and the coal feeder reducer are the main parts of the coal feeder, which can be applied to the coal feeder produced by our company and also to the coal feeder of other companies. The idlers manufactured by our company are mainly rubber idlers, ceramic idlers, nylon idlers and insulating idlers. The coal feeder belt produced by our company is made of polyester cotton ring, and the process is one molding without interface, anti-skid and wear-resistant. To the coal reducer in the prime mover and working machine or actuator between the matching speed and transfer torque role, our company's production of reducer style is complete, durable.
Shandong Dongda mechanical and Electrical products focus on the research and production of mine used mechanical and electrical products, has obtained a number of national invention patents and national product certification, municipal and district government patent funds and scientific research projects for many times, Dongda mechanical and electrical sincerely invite friends from all walks of life to visit the factory and guide the work.